Granddaughters school prom night

What is the best settings to use for my granddaughters Prom.

I'd love to help, but knowing what gear you are going to use, seems quite essential for that purpose.

If you don't want motion blur, you need a shutter speed fast enough to capture people without motion. This depends on your proximity to the subject, as well as whether or not you are using flash, and what kind of light is present. You need enough of an aperture (opening) to your shutter to let enough light in within that amount of time, and you need an ISO that isn't going to be too grainy.

 

That's an incredibly broad question without any specifications whatsoever, so without being too cavalier with the answer, I would say "If you have to ask, you don't know enough to get it right. Hire a professional."

What they said...

 

But, given that you asked about "settings" rather than equipment, lenses, lighting etc, I'm assuming you're using a point-and-shoot camera with scene modes?

 

In that case, look for something like "group portrait", "night portrait" or even just "portrait".

 

If you have exposure compensation, bracket your shots, one plus, one normal, one minus.

 

Try to avoid using the on-camera flash if you can.

 

Look for interesting shots rather than technical perfection, try different angles.